U.S. patent number 11,444,131 [Application Number 16/931,784] was granted by the patent office on 2022-09-13 for display apparatus.
This patent grant is currently assigned to SAMSUNG DISPLAY CO., LTD.. The grantee listed for this patent is SAMSUNG DISPLAY CO., LTD.. Invention is credited to Jinkoo Chung, Yongjun Jo, Kwang-Chul Jung, Dongsoo Kim, Mina Kim, Wonkyu Kwak, Changsoo Pyon.
United States Patent |
11,444,131 |
Kim , et al. |
September 13, 2022 |
Display apparatus
Abstract
A display apparatus includes a display area extending in a first
direction and a second direction, first to fourth sub-pixels, and a
spacer. The first sub-pixel emits a first color light, and includes
first and second sides extending in a third direction inclined at a
predetermined angle with the first direction, and third and fourth
sides extending in a fourth direction perpendicular to the third
direction. The second sub-pixel emits a second color light, and is
disposed adjacent to the second side of the first sub-pixel in the
fourth direction. The third sub-pixel emits a third color light,
and is disposed adjacent to the fourth side of the first sub-pixel
in the third direction. The fourth sub-pixel emits the first color
light, and is disposed adjacent to the second and third sub-pixels.
The spacer is disposed between the first and second sub-pixels and
between the third and fourth sub-pixels.
Inventors: |
Kim; Mina (Suwon-si,
KR), Jung; Kwang-Chul (Seoul, KR), Kwak;
Wonkyu (Seongnam-si, KR), Kim; Dongsoo
(Hwaseong-si, KR), Chung; Jinkoo (Suwon-si,
KR), Jo; Yongjun (Hwaseong-si, KR), Pyon;
Changsoo (Seongnam-si, KR) |
Applicant: |
Name |
City |
State |
Country |
Type |
SAMSUNG DISPLAY CO., LTD. |
Yongin-si |
N/A |
KR |
|
|
Assignee: |
SAMSUNG DISPLAY CO., LTD.
(Yongin-si, KR)
|
Family
ID: |
1000006559137 |
Appl.
No.: |
16/931,784 |
Filed: |
July 17, 2020 |
Prior Publication Data
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|
|
Document
Identifier |
Publication Date |
|
US 20210043697 A1 |
Feb 11, 2021 |
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Foreign Application Priority Data
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|
|
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Aug 5, 2019 [KR] |
|
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10-2019-0095214 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H01L
51/525 (20130101); H01L 27/3216 (20130101); H01L
27/3246 (20130101); H01L 51/5281 (20130101); H01L
27/3218 (20130101); H01L 27/3213 (20130101); H01L
51/5209 (20130101) |
Current International
Class: |
H01L
27/32 (20060101); H01L 51/52 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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108054184 |
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May 2018 |
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CN |
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108122950 |
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CN |
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111048552 |
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Apr 2020 |
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CN |
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3 451 383 |
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Mar 2019 |
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EP |
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3637471 |
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Apr 2020 |
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EP |
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10-2014-0111505 |
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Sep 2014 |
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KR |
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10-2015-0067624 |
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Jun 2015 |
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KR |
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10-2016-0065397 |
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Jun 2016 |
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KR |
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10-1878087 |
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Jul 2018 |
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KR |
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WO-2013098534 |
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Jul 2013 |
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WO |
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WO-2019044114 |
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Mar 2019 |
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WO |
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WO-2019073680 |
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Apr 2019 |
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WO |
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Other References
Machine translation, Chery, WIPO Pat. Pub. No. WO-2013098534-A1,
translation date: Feb. 19, 2022, Clarivate Analytics, all pages
(Year: 2022). cited by examiner .
Machine translation, Dai, Chinese Pat. Pub. No. CN-108054184-A,
translation date: Feb. 19, 2022, Clarivate Analytics, all pages
(Year: 2022). cited by examiner .
Machine translation, Kim, Chinese Pat. Pub. No. CN-111048552-A,
translation date: Feb. 19, 2022, Clarivate Analytics, all pages
(Year: 2022). cited by examiner .
Machine translation, Kajiyama, WIPO Pat. Pub. No. WO-2019073680-A1,
translation date: Feb. 19, 2022, Clarivate Analytics, all pages
(Year: 2022). cited by examiner .
Machine translation, Kim, Chinese Pat. Pub. No. CN-108122950-A,
translation date: Feb. 19, 2022, Clarivate Analytics, all pages
(Year: 2022). cited by examiner .
Machine translation, Kurata, WIPO Pat. Pub. No. WO-2019044114-A1,
translation date: Feb. 19, 2022, Clarivate Analytics, all pages
(Year: 2022). cited by examiner .
Extended European Search Report dated Mar. 12, 2021 From the
European Patent Office in Corresponding European Patent Application
No. 20182989.2. cited by applicant .
Extended European Search Report dated Oct. 4, 2021 From the
European Patent Office in Corresponding European Patent Application
No. 21182806.6. cited by applicant.
|
Primary Examiner: Hall; Victoria K.
Attorney, Agent or Firm: F. Chau & Associates, LLC
Claims
What is claimed is:
1. A display apparatus, comprising: a display area extending in a
first direction and a second direction, wherein the first direction
is a horizontal direction, and the second direction is
perpendicular to the first direction; a first sub-pixel, which
emits a first color light, comprising first and second sides
extending in a third direction which is inclined at a predetermined
angle with the first direction, and third and fourth sides
extending in a fourth direction perpendicular to the third
direction; a second sub-pixel, which emits a second color light,
disposed adjacent to the second side of the first sub-pixel in the
fourth direction; a third sub-pixel, which emits a third color
light, disposed adjacent to the fourth side of the first sub-pixel
in the third direction; a fourth sub-pixel, which emits the first
color light, disposed adjacent to the second and third sub-pixels;
and a spacer, which maintains a cell gap, disposed between the
first sub-pixel and the second sub-pixel and between the third
sub-pixel and the fourth sub-pixel, and extending in the third
direction, wherein the first to fourth sub-pixels are disposed in
the display area, and each of the first to fourth sub-pixels
corresponds to a light emitting area.
2. The display apparatus of claim 1, wherein the first direction
and the third direction form an angle of about 45 degrees, and the
first sub-pixel has a rhombus shape.
3. The display apparatus of claim 2, wherein the second sub-pixel
and the third sub-pixel each have a quadrangular shape having sides
extending along the third direction and the fourth direction.
4. The display apparatus of claim 3, wherein a size of the first
sub-pixel is larger than a size of at least one of the second
sub-pixel or the third sub-pixel.
5. The display apparatus of claim 3, wherein the first color light
is blue light, the second color light is green light, and the third
color light is red light.
6. The display apparatus of claim 3, wherein a long side of a first
green sub-pixel or a first red sub-pixel is adjacent to the first
side of the first sub-pixel, and a short side of the second
sub-pixel, which is a second green sub-pixel and a short side of a
second red sub-pixel are adjacent to the second side of the first
sub-pixel.
7. The display apparatus of claim 1, wherein a separation distance
between the first sub-pixel and the second sub-pixel is greater
than a separation distance between the first sub-pixel and a
closest neighboring sub-pixel adjacent to the first side of the
first sub-pixel.
8. The display apparatus of claim 1, further comprising: a fifth
sub-pixel, which emits the third color light, disposed adjacent to
the second side of the first sub-pixel in the fourth direction,
wherein the fifth sub-pixel and the second sub-pixel are spaced
apart from each other in the third direction, and a separation
distance between the first sub-pixel and the second sub-pixel is
greater than a separation distance between the first sub-pixel and
the fifth sub-pixel.
9. The display apparatus of claim 1, further comprising: a thin
film transistor substrate comprising a plurality of thin film
transistors; a plurality of pixel electrodes disposed on the thin
film transistor substrate; a pixel defining layer disposed on the
thin film transistor substrate and having an opening exposing the
pixel electrodes; and a sealing substrate facing the thin film
transistor substrate, wherein the spacer is formed by a protruding
portion of the pixel defining layer.
10. The display apparatus of claim 9, wherein a protruding opening
is formed in an outward direction of the opening at a corner of the
opening of the pixel defining layer in the first direction.
11. A display apparatus, comprising: a thin film transistor
substrate extending in a first direction, which is a horizontal
direction, and a second direction perpendicular to the first
direction; a pixel electrode disposed on the thin film transistor
substrate; and a pixel defining layer disposed on the thin film
transistor substrate and having an opening exposing a portion of
the pixel electrode, wherein the opening of the pixel defining
layer comprises sides extending along a third direction inclined at
a predetermined angle with the first direction, and sides extending
along a fourth direction perpendicular to the third direction, and
a protruding opening is formed in an outward direction of the
opening at a corner of the opening of the pixel defining layer in
the first direction.
12. The display apparatus of claim 11, wherein a protrusion is
formed at a corner of the pixel electrode in the first direction in
a location corresponding to the protruding opening of the opening
of the pixel defining layer.
13. The display apparatus of claim 11, wherein the protruding
opening of the opening of the pixel defining layer has a curved
shape.
14. The display apparatus of claim 11, wherein a vertex of the
protruding opening of the opening of the pixel defining layer has
an angle of less than about 90 degrees.
15. The display apparatus of claim 11, wherein the pixel electrode
has a rectangular shape or a square shape.
16. The display apparatus of claim 11, further comprising: a light
emitting layer disposed on the pixel electrode; and an opposite
electrode disposed on the light emitting layer.
17. The display apparatus of claim 11, further comprising: a
plurality of sub-pixels, each of which is a light emitting area,
wherein the plurality of sub-pixels comprises: a first sub-pixel,
which emits a first color light, comprising first and second sides
extending in the third direction, and third and fourth sides
extending in the fourth direction; a second sub-pixel, which emits
a second color light, disposed adjacent to the second side of the
first sub-pixel in the fourth direction; a third sub-pixel, which
emits a third color light, disposed adjacent to the fourth side of
the first sub-pixel in the third direction; and a fourth sub-pixel,
which emits the first color light, disposed adjacent to the second
and third sub-pixels.
18. The display apparatus of claim 17, further comprising: a
sealing substrate facing the thin film transistor substrate; and a
spacer, which maintains a cell gap, disposed between the thin film
transistor substrate and the sealing substrate, between the first
sub-pixel and the second sub-pixel, and between the third sub-pixel
and the fourth sub-pixel, and extending in the third direction.
19. The display apparatus of claim 17, wherein a size of the first
sub-pixel is larger than a size of at least one of the second
sub-pixel or the third sub-pixel.
20. The display apparatus of claim 11, wherein the first direction
and the third direction form an angle of about 45 degrees, and the
opening of the pixel defining layer has a rhombus shape or an
inclined rectangular shape with respect to the first direction and
the second direction.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
This application claims priority under 35 U.S.C. .sctn. 119 to
Korean Patent Application No. 10-2019-0095214, filed on Aug. 5,
2019, the disclosure of which is incorporated by reference herein
in its entirety.
TECHNICAL FIELD
Exemplary embodiments of the inventive concept relate to a display
apparatus, and more particularly, to a display apparatus for a
vehicle capable of reducing external light reflection and improving
aperture ratio.
DISCUSSION OF THE RELATED ART
Light weight, small and portable display apparatuses are becoming
more widely used. Cathode ray tube (CRT) display apparatuses have
been used in the past due to their performance and competitive
price. However, CRT display apparatuses have a large size low
portability. Accordingly, display apparatuses such as a plasma
display apparatus, a liquid crystal display apparatus and an
organic light emitting display apparatus have become more widely
used due to their small size, light weight and low power
consumption.
A display apparatus may be implemented in a vehicle. When a display
apparatus is implemented in a vehicle, the environment in the
vehicle may influence the display apparatus. For example, external
light reflection may cause visibility problems when the display
apparatus is being viewed by a user.
SUMMARY
Exemplary embodiments of the inventive concept provide a display
apparatus for a vehicle capable of reducing external light
reflection and improving aperture ratio for display quality.
According to an exemplary embodiment of the inventive concept, a
display apparatus includes a display area extending in a first
direction and a second direction, in which the first direction is a
horizontal direction, and the second direction is perpendicular to
the first direction. The display apparatus further includes first
to fourth sub-pixels. The first sub-pixel emits a first color
light, and includes first and second sides extending in a third
direction which is inclined at a predetermined angle with the first
direction, and third and fourth sides extending in a fourth
direction perpendicular to the third direction. The second
sub-pixel emits a second color light, and is disposed adjacent to
the second side of the first sub-pixel in the fourth direction. The
third sub-pixel emits a third color light, and is disposed adjacent
to the fourth side of the first sub-pixel in the third direction.
The fourth sub-pixel emits the first color light, and is disposed
adjacent to the second and third sub-pixels. The display apparatus
further includes a spacer, which maintains a cell gap, and is
disposed between the first sub-pixel and the second sub-pixel and
between the third sub-pixel and the fourth sub-pixel, and extending
in the third direction. The first to fourth sub-pixels are disposed
in the display area, and each of the first to fourth sub-pixels
corresponds to a light emitting area.
In an exemplary embodiment, the first direction and the third
direction form an angle of about 45 degrees, and the first
sub-pixel has a rhombus shape.
In an exemplary embodiment, the second sub-pixel and the third
sub-pixel each have a quadrangular shape having sides extending
along the third direction and the fourth direction.
In an exemplary embodiment, a size of the first sub-pixel is larger
than a size of at least one of the second sub-pixel or the third
sub-pixel.
In an exemplary embodiment, the first color light is blue light,
the second color light is green light, and the third color light is
red light.
In an exemplary embodiment, a long side of a first green sub-pixel
or a first red sub-pixel is adjacent to the first side of the first
sub-pixel, and a short side of a second green sub-pixel and a short
side of a second red sub-pixel are adjacent to the second side of
the first sub-pixel.
In an exemplary embodiment, a separation distance between the first
sub-pixel and the second sub-pixel is greater than a separation
distance between the first sub-pixel and a closest neighboring
sub-pixel adjacent to the first side of the first sub-pixel.
In an exemplary embodiment, the display apparatus further includes
a fifth sub-pixel, which emits the third color light, disposed
adjacent to the second side of the first sub-pixel in the fourth
direction. The fifth sub-pixel and the second sub-pixel are spaced
apart from each other in the third direction, and a separation
distance between the first sub-pixel and the second sub-pixel is
greater than a separation distance between the first sub-pixel and
the fifth sub-pixel.
In an exemplary embodiment, the display apparatus further includes
a thin film transistor substrate including a plurality of thin film
transistors, a plurality of pixel electrodes disposed on the thin
film transistor substrate, a pixel defining layer disposed on the
thin film transistor substrate and having an opening exposing the
pixel electrodes, and a sealing substrate facing the thin film
transistor substrate. The spacer is formed by a protruding portion
of the pixel defining layer.
In an exemplary embodiment, a protruding opening may be formed in
an outward direction of the opening at a corner of the opening of
the pixel defining layer in the first direction.
According to an exemplary embodiment of the inventive concept, a
display apparatus includes a thin film transistor substrate
extending in a first direction, which is a horizontal direction,
and a second direction perpendicular to the first direction, a
pixel electrode disposed on the thin film transistor substrate, and
a pixel defining layer disposed on the thin film transistor
substrate and having an opening exposing a portion of the pixel
electrode. The opening of the pixel defining layer includes sides
extending along a third direction inclined at a predetermined angle
with the first direction, and sides extending along a fourth
direction perpendicular to the third direction. A protruding
opening is formed in an outward direction of the opening at a
corner of the opening of the pixel defining layer in the first
direction.
In an exemplary embodiment, a protrusion is formed at a corner of
the pixel electrode in the first direction in a location
corresponding to the protruding opening of the opening of the pixel
defining layer.
In an exemplary embodiment, the protruding opening of the opening
of the pixel defining layer has a curved shape.
In an exemplary embodiment, a vertex of the protruding opening of
the opening of the pixel defining layer has an angle of less than
about 90 degrees.
In an exemplary embodiment, the pixel electrode has a rectangular
shape or a square shape.
In an exemplary embodiment, the display apparatus further includes
a light emitting layer disposed on the pixel electrode, and an
opposite electrode disposed on the light emitting layer.
In an exemplary embodiment, the opening of the pixel defining layer
defines a plurality of sub-pixels, each of which is a light
emitting area, and the plurality of sub-pixels includes first to
fourth sub-pixels. The first sub-pixel emits a first color light,
and includes first and second sides extending in the third
direction, and third and fourth sides extending in the fourth
direction. The second sub-pixel emits a second color light, and is
disposed adjacent to the second side of the first sub-pixel in the
fourth direction. The third sub-pixel emits a third color light,
and is disposed adjacent to the fourth side of the first sub-pixel
in the third direction. The fourth sub-pixel emits the first color
light, and is disposed adjacent to the second and third
sub-pixels.
In an exemplary embodiment, the display apparatus further includes
a sealing substrate facing the thin film transistor substrate, and
a spacer, which maintains a cell gap, and is disposed between the
thin film transistor substrate and the sealing substrate, between
the first sub-pixel and the second sub-pixel, and between the third
sub-pixel and the fourth sub-pixel, and extending in the third
direction.
In an exemplary embodiment, a size of the first sub-pixel is larger
than a size of at least one of the second sub-pixel or the third
sub-pixel.
In an exemplary embodiment, the first direction and the third
direction form an angle of about 45 degrees, and the opening of the
pixel defining layer has a rhombus shape or an inclined rectangular
shape with respect to the first direction and the second
direction.
According to exemplary embodiments of the present inventive
concept, a display apparatus includes a plurality of sub-pixels
disposed in a display area which extends in a first direction,
which is a horizontal direction, and in a second direction
perpendicular to the first direction. Each of the sub-pixels
corresponds to a light emitting area. The display apparatus
includes a first sub-pixel emitting a first color light, and
including first and second sides extending in a third direction
which is inclined at a predetermined angle with the first
direction, and third and fourth sides extending in a fourth
direction perpendicular to the third direction. The display
apparatus further includes a second sub-pixel emitting a second
color light and disposed adjacent to the second side of the first
sub-pixel in the fourth direction, a third sub-pixel emitting a
third color light and disposed adjacent to the fourth side of the
first sub-pixel in the third direction, and a fourth sub-pixel
emitting the first color light and disposed adjacent to the second
and third sub-pixels. The display apparatus further includes a
spacer for maintaining a cell gap, disposed between the first
sub-pixel and the second sub-pixel, and between the third sub-pixel
and the fourth sub-pixel, and extending in the third direction.
Protrusions may be formed at corners of the sub-pixels in the first
direction.
The display apparatus includes sub-pixels and spacers that are
appropriately arranged, thereby implementing a high aperture ratio
structure. Since protrusions are formed at corners of the
sub-pixels to reduce reflection of external light, a display
apparatus suitable for a vehicle display device can be
provided.
BRIEF DESCRIPTION OF THE DRAWINGS
The above and other features of the inventive concept will become
more apparent by describing in detail exemplary embodiments thereof
with reference to the accompanying drawings, in which:
FIG. 1 is a view for explaining a reflection of external light when
a display apparatus according to an exemplary embodiment of the
inventive concept is used in a vehicle.
FIG. 2 is a diagram illustrating a first display apparatus and a
second display apparatus of the display apparatus of FIG. 1.
FIG. 3 is a plan view illustrating a sub-pixel arrangement of the
display apparatus of FIG. 2 according to an exemplary embodiment of
the inventive concept.
FIG. 4 is a partially enlarged view illustrating a periphery of a
fourth spacer of the display apparatus of FIG. 3 in detail
according to an exemplary embodiment of the inventive concept.
FIG. 5 is a cross-sectional view taken along line I-I' of FIG. 4
according to an exemplary embodiment of the inventive concept.
FIG. 6 is a plan view illustrating a sub-pixel arrangement of a
display apparatus according to an exemplary embodiment of the
inventive concept.
FIG. 7 is a partially enlarged view illustrating one corner of one
sub-pixel of the display apparatus of FIG. 6 in detail according to
an exemplary embodiment of the inventive concept.
FIG. 8 is a cross-sectional view illustrating a portion
corresponding to a third blue sub-pixel of the display apparatus of
FIG. 6 according to an exemplary embodiment of the inventive
concept.
FIGS. 9A, 9B, and 9C are partially enlarged views illustrating one
corner of one sub-pixel of a display apparatus in detail according
to exemplary embodiments of the inventive concept.
FIGS. 10A and 10B are plan and cross-sectional views illustrating
external light reflection of one sub-pixel of a display apparatus
according to a comparative example.
FIGS. 11A and 11B are plan and cross-sectional views illustrating
reflection of external light of one sub-pixel of a display
apparatus according to another comparative example.
FIG. 12 is a block diagram illustrating an electronic device
according to exemplary embodiments of the inventive concept.
DETAILED DESCRIPTION
Exemplary embodiments of the present inventive concept will be
described more fully hereinafter with reference to the accompanying
drawings. Like reference numerals may refer to like elements
throughout the accompanying drawings.
It will be understood that the terms "first," "second," "third,"
etc. are used herein to distinguish one element from another, and
the elements are not limited by these terms. Thus, a "first"
element in an exemplary embodiment may be described as a "second"
element in another exemplary embodiment.
It should be understood that descriptions of features or aspects
within each exemplary embodiment should typically be considered as
available for other similar features or aspects in other exemplary
embodiments, unless the context clearly indicates otherwise.
As used herein, the singular forms "a", "an" and "the" are intended
to include the plural forms as well, unless the context clearly
indicates otherwise.
It will be understood that when a component, such as a film, a
region, a layer, or an element, is referred to as being "on",
"connected to", "coupled to", or "adjacent to" another component,
it can be directly on, connected, coupled, or adjacent to the other
component, or intervening components may be present. It will also
be understood that when a component is referred to as being
"between" two components, it can be the only component between the
two components, or one or more intervening components may also be
present. It will also be understood that when a component is
referred to as "covering" another component, it can be the only
component covering the other component, or one or more intervening
components may also be covering the other component. Other words
used to describe the relationship between elements should be
interpreted in a like fashion.
Herein, when an element such as, for example, a sub-pixel, is
described as having a long side(s) and a short side(s), it is to be
understood that the lengths of the sides of the element are
described relative to one another.
FIG. 1 is a view for explaining a reflection of external light when
a display apparatus according to an exemplary embodiment of the
inventive concept is used in a vehicle. FIG. 2 is a diagram
illustrating a first display apparatus DS1 and a second display
apparatus DS2 of the display apparatus of FIG. 1.
Referring to FIGS. 1 and 2, in an exemplary embodiment, a display
apparatus may be disposed inside a vehicle, and may display various
vehicle information or contents related to driving of the vehicle
to a passenger inside the vehicle.
For example, the display apparatus may include a first display
apparatus DS1 and a second display apparatus DS2. The first display
apparatus DS1 may be disposed in a center fascia area and may
display, for example, an image received from a rear camera (e.g.,
an image provided for reverse driving or parking), or a variety of
other vehicle related contents. The second display apparatus DS2
may be disposed in a dashboard region and may display various
vehicle information related to vehicle driving.
The first and second display apparatus DS1 and DS2 may be disposed
in a display area extending along a first direction D1, which is a
horizontal direction, and a second direction D2, which is
perpendicular to the first direction D1. The first and second
display apparatus DS1 and DS2 may include a plurality of
sub-pixels, each corresponding to a light emitting area.
Due to the environment in which the display apparatus for the
vehicle is used, it is desirable for the display apparatus to have
a high luminance characteristic and a high aperture ratio
structure. However, a number of causes of external light reflection
may cause visibility problems when a passenger is viewing the
display apparatus. For example, sunlight SN incident into the
vehicle may be reflected by the display apparatus and perceived by
a passenger's field of view EYE. In particular, light incident
along the horizontal direction through a window of the vehicle may
be reflected from the display apparatus and travel to the
passenger's field of view EYE, causing visibility problems.
According to an exemplary embodiment, as described below, a display
apparatus for a vehicle having a high aperture ratio structure and
reducing external light reflection factors can be provided.
Although it is described herein that the display apparatus
according to exemplary embodiments may be used in a vehicle, it is
to be understood that the display apparatus according to exemplary
embodiments is not limited to use in a vehicle.
FIG. 3 is a plan view illustrating a sub-pixel arrangement of the
display apparatus of FIG. 2 according to an exemplary embodiment of
the inventive concept. FIG. 4 is a partially enlarged view
illustrating a periphery of a fourth spacer of the display
apparatus of FIG. 3 in detail according to an exemplary embodiment
of the inventive concept.
Referring to FIGS. 3 and 4, in an exemplary embodiment, the display
apparatus may include a plurality of sub-pixels disposed in a
display area extending along a first direction D1, which is a
horizontal direction, and a second direction D2, which is
perpendicular to the first direction D1. Each of the sub-pixels
corresponds to a light emitting area.
The sub-pixels may include a plurality of blue sub-pixels, a
plurality of red sub-pixels, and a plurality of green
sub-pixels.
For example, a first blue sub-pixel B1, a second blue sub-pixel B2,
a third blue sub-pixel B3, and a fourth blue sub-pixel B4 may be
arranged in a matrix form along the first direction D1 and the
second direction D2. The first blue sub-pixel B1, the second blue
sub-pixel B2, the third blue sub-pixel B3, and the fourth blue
sub-pixel B4 may emit blue light.
A first red sub-pixel R1, a second red sub-pixel R2, a third red
sub-pixel R3, and a fourth red sub-pixel R4 may be arranged in a
matrix form along the first direction D1 and the second direction
D2. The first red sub-pixel R1, the second red sub-pixel R2, the
third red sub-pixel R3, and the fourth red sub-pixel R4 may emit
red light.
A first green sub-pixel G1, a second green sub-pixel G2, a third
green sub-pixel G3, and a fourth green sub-pixel G4 may be arranged
in a matrix form along the first direction D1 and the second
direction D2. The first green sub-pixel G1, the second green
sub-pixel G2, the third green sub-pixel G3, and the fourth green
sub-pixel G4 may emit green light.
A first spacer SP1, a second spacer SP2, a third spacer SP3, and a
fourth spacer SP4 may be arranged in a matrix form along the first
direction D1 and the second direction D2. The first spacer SP1, the
second spacer SP2, the third spacer SP3, and the fourth spacer SP4
may be a structure for maintaining a cell gap between a thin film
transistor substrate (see 100 in FIG. 5) and a sealing substrate
(see 200 in FIG. 5).
The first blue sub-pixel B1, the first red sub-pixel R1, and the
first green sub-pixel G1 may form a first unit pixel. The second
blue sub-pixel B2, the second red sub-pixel R2, and the second
green sub-pixel G2 may form a second unit pixel. The third blue
sub-pixel B3, the third red sub-pixel R3, and the third green
sub-pixel G3 may form a third unit pixel. The fourth blue sub-pixel
B4, the fourth red sub-pixel R4, and the fourth green sub-pixel G4
may form a fourth unit pixel.
Thus, each of the unit pixels may include a red sub-pixel, a green
sub-pixel, and a blue sub-pixel. As shown in FIG. 3, the first unit
pixel is arranged in a first row RW1 and a first column CL1. The
second unit pixel is arranged in the first row RW1 and a second
column CL2. The third unit pixel is disposed in a second row RW2
and the first column CL1. The fourth unit pixel is disposed in the
second row RW2 and the second column CL2. Accordingly, the first to
fourth unit pixels may be arranged in a matrix form along the first
direction D1 and the second direction D2.
For example, one red sub-pixel, one green sub-pixel, one blue
sub-pixel, and one spacer may be disposed in one row and one column
divided by each unit pixel.
The third blue sub-pixel B3 may include a first side extending
along a third direction D3 inclined at a predetermined angle with
respect to the first direction D1, a second side B3b facing the
first side, a third side extending along a fourth direction D4
perpendicular to the third direction D3, and a fourth side B3c
facing the third side. Thus, the second side B3b may extend along
the third direction D3 similar to the first side, and the fourth
side B3c may extend along the fourth direction D4 similar to the
third side. The third blue sub-pixel B3 may have a rhombus
shape.
The second green sub-pixel G2 may be disposed adjacent to the
second side B3b of the third blue sub-pixel B3 in the fourth
direction D4. The second green sub-pixel G2 may have a quadrangular
shape having sides extending along the third direction D3 and the
fourth direction D4.
The fourth red sub-pixel R4 may be disposed adjacent to the fourth
side B3c of the third blue sub-pixel B3 in the third direction D3.
The fourth red sub-pixel R4 may have a quadrangular shape having
sides extending along the third direction D3 and the fourth
direction D4.
The fourth blue sub pixel B4 may be disposed adjacent to the second
green sub-pixel G2 in the third direction D3, and adjacent to the
fourth red sub-pixel R4 in the fourth direction D4.
The fourth spacer SP4 may be disposed between the third blue
sub-pixel B3 and the second green sub-pixel G2, and between the
fourth red sub-pixel R4 and the fourth blue sub-pixel B4, and may
extend along the third direction D3. The fourth spacer SP4 may
include two short sides SP4c and SP4d which oppose each other, and
two long sides SP4a and SP4b which oppose each other. A first long
side SP4a of the fourth spacer SP4 may be directly adjacent to the
second side B3b of the third blue sub-pixel B3 and directly
adjacent to a short side R4b of the fourth red sub-pixel R4. A
second long side SP4b of the fourth spacer SP4, which opposes the
first long side SP4a, may be directly adjacent to a short side G2a
of the second green sub-pixel G2 and directly adjacent to a side
B4a of the fourth blue sub-pixel B4. The side B4a of the fourth
blue sub-pixel B4 may oppose the short side R4b of the fourth red
sub-pixel R4 and a short side G4b of the fourth green sub-pixel G4
in the fourth direction D4.
Here, the first direction D1 and the third direction D3 may form an
angle of about 45 degrees. Each of the first to fourth blue
sub-pixels B1, B2, B3, and B4 may have a rhombus shape.
The first red sub-pixel R1 and the first green sub-pixel G1 may
each have an inclined rectangular shape including long sides
extending along the third direction D3 and short sides extending
along the fourth direction D4.
The second red sub-pixel R2, the second green sub-pixel G2, the
fourth red sub-pixel R4, and the fourth green sub-pixel G4 may each
have an inclined rectangular shape including short sides extending
along the third direction D3 and long sides extending along the
fourth direction D4.
Here, the first red sub-pixel R1, the first green sub-pixel G1, and
the first blue sub-pixel B1 of the first unit pixel may be
diagonally arranged along the fourth direction D4. For example, the
first red sub-pixel R1, the first green sub-pixel G1, and the first
blue sub-pixel B1 of the first unit pixel may be adjacent to each
other along the fourth direction D4. The third red sub-pixel R3,
the third green sub-pixel G3, and the third blue sub-pixel B3 of
the third unit pixel may be arranged diagonally along the fourth
direction D4. For example, the third red sub-pixel R3, the third
green sub-pixel G3, and the third blue sub-pixel B3 of the third
unit pixel may be adjacent to each other along the fourth direction
D4. The second red sub-pixel R2 and the second green sub-pixel G2
of the second unit pixel may be arranged along the third direction
D3. For example, the second red sub-pixel R2 and the second green
sub-pixel G2 of the second unit pixel may be adjacent to each other
along the third direction D3. The second blue sub-pixel B2 may be
arranged along the fourth direction D4 with the second red and
green sub-pixels R2 and G2. For example, the second blue sub-pixel
B2 may be adjacent to the second red and green sub-pixels R2 and G2
in the fourth direction D4. The fourth red sub-pixel R4 and the
fourth green sub-pixel G4 of the fourth unit pixel may be arranged
along the third direction D3. For example, the fourth red sub-pixel
R4 and the fourth green sub-pixel G4 of the fourth unit pixel may
be adjacent to each other along the third direction D3. The fourth
blue sub-pixel B4 may be arranged along the fourth direction D4
with the fourth red and green sub-pixels R4 and G4. For example,
the fourth blue sub-pixel B4 may be adjacent to the fourth red and
green sub-pixels R4 and G4 in the fourth direction D4.
In an exemplary embodiment, the size of each of the first to fourth
blue sub-pixels B1, B2, B3, and B4 may be larger than the size of
each of the first to fourth red sub-pixels R1, R2, R3, and R4, and
may be larger than the size of each of the first to fourth green
sub-pixels G1, G2, G3, and G4. In an exemplary embodiment, the size
of each of the first to fourth red sub-pixels R1, R2, R3, and R4
may be substantially the same as the size of each of the first to
fourth green sub-pixels G1, G2, G3, and G4. In an exemplary
embodiment, the size of each of the first to fourth blue sub-pixels
B1, B2, B3, and B4 may be about twice as large as the size of each
of the first to fourth red sub-pixels R1, R2, R3, and R4, and about
twice as large as the size of each of the first to fourth green
sub-pixels G1, G2, G3, and G4.
A long side of the green or red sub-pixel is adjacent to the first
side of the third blue sub-pixel B3. A short side of a green
sub-pixel (e.g., the second green sub-pixel G2) and a short side of
a red sub-pixel (e.g., the second red sub-pixel R2) are adjacent to
the second side B3b of the third blue sub-pixel B3. For example, as
shown in FIG. 4, the short side G2a of the second green sub-pixel
G2 and a short side R2a of the second red sub-pixel R2 are adjacent
to the second side B3b of the third blue sub-pixel B3. For example,
the short side G2a of the second green sub-pixel G2 and the short
side R2a of the second red sub-pixel R2 may oppose the second side
B3b of the third blue sub-pixel B3 in the fourth direction D4. For
example, the short side G2a of the second green sub-pixel G2 and
the short side R2a of the second red sub-pixel R2 may be parallel
to the second side B3b of the third blue sub-pixel B3 in the third
direction D3.
In this case, a separation distance between the third blue
sub-pixel B3 and the second green sub-pixel G2 may be larger than a
separation distance between the third blue sub-pixel B3 and a
closest neighboring sub-pixel (e.g., the third green sub-pixel G3)
adjacent to the first side of the third blue sub-pixel B3. Here,
"closest neighboring" means the sub-pixel from among all of the
sub-pixels most adjacent (or closest) to the first side of the
third blue sub-pixel B3 in the fourth direction D4. In addition, a
separation distance between the third blue sub-pixel B3 and the
second green sub-pixel G2 may be greater than a separation distance
between the third blue sub-pixel B3 and the second red sub-pixel
R2.
According to exemplary embodiments, this configuration results in
the securing of sufficient space for the disposition of the fourth
spacer SP4 between the third blue sub-pixel B3 and the second green
sub-pixel G2 and between the fourth red sub-pixel R4 and the fourth
blue sub-pixel B4, and allows for the size of each sub-pixel to be
increased/maximized to ensure a sufficient aperture ratio.
In addition, the first red sub-pixel R1 and the first green
sub-pixel G1 are shifted to a left upper side with respect to the
fourth direction D4. In the second red sub-pixel R2 and the second
green sub-pixel G2, the second red sub-pixel R2 is shifted to a
left lower side with respect to the third direction D3.
Accordingly, misalignment between the first red sub-pixel R1 and
the second red sub-pixel R2 in the second direction D2 may be
reduced/minimized, thereby improving a cognitive characteristic of
the display apparatus when viewed by the user.
FIG. 5 is a cross-sectional view taken along line I-I' of FIG. 4
according to an exemplary embodiment of the inventive concept.
Referring to FIG. 5, the display apparatus may include a thin film
transistor substrate 100, a plurality of pixel electrodes B3PE and
G2PE, a pixel defining layer PDL, a light emitting layer B3EL and
G2EL, an opposite electrode CE, a sealing member 150, and a sealing
substrate 200. Referring to FIGS. 3, 4 and 5, the thin film
transistor substrate 100 may extend in the first direction D1 and
the second direction D2.
The thin film transistor substrate 100 may include a plurality of
thin film transistors.
The pixel electrodes B3PE, G2PE may be disposed on the thin film
transistor substrate 100.
The pixel defining layer PDL may be disposed on the thin film
transistor substrate 100 on which the pixel electrodes B3PE, G2PE
are disposed. An opening exposing the pixel electrodes B3PE, G2PE
may be formed in the pixel defining layer PDL. The pixel defining
layer PDL may cover a portion of an edge of the pixel electrode
B3PE, G2PE. For example, the pixel defining layer PDL may cover
side surfaces (or end surfaces) of the pixel electrode B3PE, G2PE,
and may cover a portion of the upper surface of the pixel electrode
B3PE, G2PE.
The light emitting layer B3EL, G2EL may be disposed on the pixel
electrode B3PE, G2PE in the opening of the pixel defining layer
PDL.
The opposite electrode CE may be disposed on the light emitting
layer B3EL, G2EL and the pixel defining layer PDL.
The sealing substrate 200 may face the thin film transistor
substrate 100. The sealing substrate 200 may seal a light emitting
structure formed by the pixel electrode B3PE, G2PE, the light
emitting layer B3EL, G2EL, and the opposite electrode CE together
with the sealing member 150.
Here, a portion of the pixel defining layer PDL may protrude to
form the spacer SP4. The spacer SP4 may maintain a cell gap between
the sealing substrate 200 and the thin film transistor substrate
100.
In an exemplary embodiment, the sealing member 150 and the sealing
substrate 200 may be replaced with a thin film encapsulation layer.
The thin film encapsulation layer may prevent penetration of
moisture and oxygen from the outside. The thin film encapsulation
layer may include, for example, at least one organic layer and at
least one inorganic layer. The at least one organic layer and the
at least one inorganic layer may be alternately stacked with each
other. For example, the thin film encapsulation layer may include a
first inorganic layer, a second inorganic layer, and an organic
layer disposed between the first inorganic layer and the second
inorganic layer. However, the thin film encapsulation layer of
embodiments is not limited thereto.
FIG. 6 is a plan view illustrating a sub-pixel arrangement of a
display apparatus according to an exemplary embodiment of the
inventive concept. FIG. 7 is a partially enlarged view illustrating
one corner of one sub-pixel of the display apparatus of FIG. 6 in
detail according to an exemplary embodiment of the inventive
concept.
Referring to FIG. 6, the display apparatus may include a first blue
sub-pixel B1, a second blue sub-pixel B2, a third blue sub pixel
B3, and a fourth blue sub pixel B4 arranged in a matrix form in a
first direction D1 and a second direction D2.
The display apparatus may further include a first red sub-pixel R1,
a second red sub-pixel R2, a third red sub-pixel R3, and a fourth
red sub-pixel R4 arranged in a matrix form in the first direction
D1 and the second direction D2.
The display apparatus may further include a first green sub pixel
G1, a second green sub pixel G2, a third green sub-pixel G3, and a
fourth green sub-pixel G4 arranged in a matrix form in the first
direction D1 and the second direction D2.
The arrangement of the first to fourth blue sub-pixels B1, B2, B3,
and B4, the first to fourth red sub-pixels R1, R2, R3, and R4, and
the first to fourth green sub-pixels G1, G2, G3, and G4 are
substantially the same as the arrangement of the sub-pixels of the
display apparatus of FIG. 3. Therefore, for convenience of
explanation, a further detailed description of elements and aspects
previously described may be omitted.
Referring to FIG. 7, in an exemplary embodiment, protrusions PT may
be formed at corners of each of the sub-pixels defined by an
opening OP of a pixel defining layer PDL in a first direction D1.
In an exemplary embodiment, protrusions PT may be formed at two
corners of each of the sub-pixels. However, exemplary embodiments
are not limited thereto. In an exemplary embodiment, the opening OP
of the pixel defining layer PDL may have a rhombus shape or an
inclined rectangular shape (e.g., with respect to the first and
second directions D1 and D2, as shown in FIG. 6).
For example, the opening OP of the pixel defining layer PDL may
have sides extending along a third direction D3 inclined at a
predetermined angle with the first direction D1, and sides
extending along a fourth direction D4 perpendicular to the third
direction D3. A protruding opening PT may be formed in an outward
direction of the opening OP at a corner of the opening OP of the
pixel defining layer PDL in the first direction D1.
A protrusion may be formed at a corner of the pixel electrode PE in
the first direction D1 in a location corresponding to the
protruding opening PT of the opening OP of the pixel defining layer
PDL. The pixel electrode PE may have a rectangular shape or a
square shape.
A vertex of the protruding opening PT of the opening OP of the
pixel defining layer PDL may form an acute angle having an angle
.theta. of less than about 90 degrees. For example, the acute angle
may be about 45 degrees.
FIG. 8 is a cross-sectional view illustrating a portion
corresponding to a third blue sub-pixel B3 of the display apparatus
of FIG. 6 according to an exemplary embodiment of the inventive
concept.
The display apparatus may include a thin film transistor substrate
100, a pixel electrode B3PE, a pixel defining layer PDL, a light
emitting layer B3EL, an opposite electrode CE, and a sealing part
300.
The thin film transistor substrate 100 may include a plurality of
thin film transistors.
The pixel electrode B3PE may be disposed on the thin film
transistor substrate 100.
The pixel defining layer PDL may be disposed on the thin film
transistor substrate 100 on which the pixel electrode B3PE is
disposed. An opening exposing the pixel electrode B3PE may be
formed in the pixel defining layer PDL. The pixel defining layer
PDL may cover a portion of an edge of the pixel electrode B3PE.
The light emitting layer B3EL may be disposed on the pixel
electrode B3PE in the opening of the pixel defining layer PDL.
The opposite electrode CE may be disposed on the emitting layer
B3EL and the pixel defining layer PDL.
In an exemplary embodiment, the sealing part 300 may be a sealing
member and a sealing substrate. In an exemplary embodiment, the
sealing part 300 may be a thin film encapsulation layer. The thin
film encapsulation layer may prevent penetration of moisture and
oxygen from the outside. The thin film encapsulation layer may
include, for example, at least one organic layer and at least one
inorganic layer. The at least one organic layer and the at least
one inorganic layer may be alternately stacked with each other. For
example, the thin film encapsulation layer may include a first
inorganic layer, a second inorganic layer, and an organic layer
disposed between the first inorganic layer and the second inorganic
layer. However, exemplary embodiments are not limited thereto.
FIGS. 9A, 9B, and 9C are partially enlarged views illustrating one
corner of one sub-pixel of a display apparatus in detail according
to exemplary embodiments of the inventive concept.
Referring to FIGS. 9A, 9B, and 9C, the protruding openings PT of
the openings OP of the pixel defining layer PDL may have various
shapes. The protruding opening PT may protrude in a direction
inclined by a predetermined angle with respect to the first
direction D1 or may have a curved shape. However, exemplary
embodiments are not limited thereto. For example, the protruding
opening PT of the opening OP of the pixel defining layer PDL may
have various shapes in which the side formed along the second
direction D2 is reduced/minimized.
FIGS. 10A and 10B are plan and cross-sectional views illustrating
external light reflection of one sub-pixel of a display apparatus
according to a comparative example. FIG. 10B is a cross-sectional
view taken along line I-I' of FIG. 10A. FIGS. 11A and 11B are plan
and cross-sectional views illustrating reflection of external light
of one sub-pixel of a display apparatus according to another
comparative example. FIG. 11B is a cross-sectional view taken along
line I-I' of FIG. 11A.
Referring to FIGS. 10A and 10B, a display apparatus may include a
thin film transistor substrate 100, a pixel electrode PE, a pixel
defining layer PDL, a light emitting layer EL, an opposite
electrode CE, and a sealing part 300. For convenience of
explanation, a further description of elements and technical
aspects is omitted herein.
Still referring to FIGS. 10A and 10B, it can be seen that external
light reflection mainly occurs on an inclined surface of the pixel
defining layer PDL having an opening. For example, reflection may
occur at a side extending in a second direction D2 of the opening
of the pixel defining layer PDL, and such reflection may be
recognized by the user (see FIG. 1).
Referring to FIGS. 11A and 11B, a display apparatus may include a
thin film transistor substrate 100, a pixel electrode PE, a pixel
defining layer PDL, a light emitting layer EL, an opposite
electrode CE, and a sealing part 300. For convenience of
explanation, a further description of elements and technical
aspects is omitted herein.
Still referring to FIGS. 11A and 11B, a shape of the opening of the
pixel defining layer PDL may be a rhombus shape, which may reduce a
length of the side extending along the second direction D2 of the
opening, thereby reducing external light reflection. However, a
portion extending along the second direction D2 may be formed at a
corner of the opening in the first direction D1, and the reflection
of external light in the portion may be visually recognized by the
user.
In contrast to the comparative examples described above, in
exemplary embodiments, according to the structure of the display
apparatus illustrated in FIGS. 6 to 9C, a protruding opening PT in
an outward direction of the opening OP is formed at the corner of
the opening OP in the first direction D1, thereby
reducing/minimizing reflection of external light at the corner.
FIG. 12 is a block diagram illustrating an electronic device
according to exemplary embodiments.
Referring to FIG. 12, an electronic device 500 may include a
processor 510, a memory device 520, a storage device 530, an
input/output (I/O) device 540, a power supply 550, and a display
device 560. Here, the display device 560 may correspond to the
display apparatus of FIG. 1. In addition, the electronic device 500
may further include a plurality of ports for communicating with,
for example, a video card, a sound card, a memory card, a universal
serial bus (USB) device, or other electronic devices. According to
exemplary embodiments, the electronic device 500 may be, for
example, a television, a cellular phone such as a smartphone, a
smartwatch, a tablet PC, a car navigation system, a computer
monitor, a laptop, a head mounted display (HMD), etc. However, the
electronic device 500 of embodiments is not limited thereto.
The processor 510 may perform various computing functions. The
processor 510 may be, for example, a micro processor, a central
processing unit (CPU), an application processor (AP), etc. The
processor 510 may be coupled to other components via an address
bus, a control bus, a data bus, etc. Further, the processor 510 may
be coupled to an extended bus such as a peripheral component
interconnection (PCI) bus. The memory device 520 may store data for
operations of the electronic device 500. For example, the memory
device 520 may include at least one non-volatile memory device such
as an erasable programmable read-only memory (EPROM) device, an
electrically erasable programmable read-only memory (EEPROM)
device, a flash memory device, a phase change random access memory
(PRAM) device, a resistance random access memory (RRAM) device, a
nano floating gate memory (NFGM) device, a polymer random access
memory (PoRAM) device, a magnetic random access memory (MRAM)
device, a ferroelectric random access memory (FRAM) device, etc.,
and/or at least one volatile memory device such as a dynamic random
access memory (DRAM) device, a static random access memory (SRAM)
device, a mobile DRAM device, etc. The storage device 530 may
include, for example, a solid state drive (SSD) device, a hard disk
drive (HDD) device, a CD-ROM device, etc. The I/O device 540 may
include, for example, an input device such as a keyboard, a keypad,
a mouse device, a touchpad, a touchscreen, etc., and an output
device such as a printer, a speaker, etc. The power supply 550 may
provide power for operations of the electronic device 500.
The display device 560 may be coupled to other components via the
buses or other communication links. In exemplary embodiments, the
display device 560 may be included in the I/O device 540. As
described above, the display device 560 includes sub-pixels and
spacers that are appropriately arranged, thereby implementing a
high aperture ratio structure. Since protrusions are formed at
corners of the sub-pixels to reduce reflection of external light in
some exemplary embodiments, a display apparatus suitable for a
vehicle display device can be provided.
As discussed, embodiments may provide a display apparatus,
comprising: a display area extending in a first direction and a
second direction, wherein the first direction is a horizontal
direction, and the second direction is perpendicular to the first
direction; a first sub-pixel, arranged to emit a first color light,
comprising first and second sides extending in a third direction
which is inclined at a predetermined angle with the first
direction, and third and fourth sides extending in a fourth
direction perpendicular to the third direction; a second sub-pixel,
arranged to emit a second color light, disposed adjacent to the
second side of the first sub-pixel in the fourth direction; a third
sub-pixel, arranged to emit a third color light, disposed adjacent
to the fourth side of the first sub-pixel in the third direction; a
fourth sub-pixel, which emits the first color light, disposed
adjacent to the second and third sub-pixels; and a spacer, which
maintains a cell gap, disposed between the first sub-pixel and the
second sub-pixel and between the third sub-pixel and the fourth
sub-pixel, and extending in the third direction, wherein the first
to fourth sub-pixels are disposed in the display area, and each of
the first to fourth sub-pixels corresponds to a light emitting
area.
The fourth sub-pixel may be disposed adjacent to the second
sub-pixel in the third direction, and may be adjacent to the third
sub-pixel in the fourth direction.
The spacer may be arranged to extend in the third direction so that
it is between the first sub-pixel and the second sub-pixel when
considered in the fourth direction and between the third sub-pixel
and the fourth sub-pixel when considered in the fourth
direction.
A fifth sub-pixel, arranged to emit the third color light, may be
disposed adjacent to the second side of the first sub-pixel in the
fourth direction wherein the fifth sub-pixel is adjacent the second
sub-pixel in the third direction. Hence, the second and fifth
sub-pixels may both be adjacent the second side of the first
sub-pixel in the fourth direction. The spacer may be adjacent the
second sub-pixel, but not the fifth sub-pixel.
A sixth sub-pixel, arranged to emit the second color light, may be
disposed adjacent to the third sub-pixel in the third direction.
The sixth sub-pixel and the third sub-pixel may both be adjacent
the fourth sub-pixel in the fourth direction. The spacer may be
adjacent the third sub-pixel, but not the sixth sub-pixel.
A seventh sub-pixel, arranged to emit the second color light, may
be disposed adjacent to the first side of the first sub-pixel in
the fourth direction.
An eighth sub-pixel, arranged to emit the third color light, may be
disposed adjacent to the third side of the first sub-pixel in the
third direction.
A second spacer, which maintains a cell gap, may be disposed
between the first sub-pixel and the seventh sub-pixel in the fourth
direction and between the first sub-pixel and the eighth sub-pixel
in the third direction.
Protrusions may be formed at corners of the sub-pixels in the first
direction.
The display apparatus may comprise a thin film transistor substrate
extending in the first direction; a pixel electrode disposed on the
thin film transistor substrate; and a pixel defining layer disposed
on the thin film transistor substrate and having an opening
exposing a portion of the pixel electrode, wherein the opening of
the pixel defining layer comprises sides extending along the third
direction, and sides extending along the fourth direction, and a
protruding opening is formed in an outward direction of the opening
at a corner of the opening of the pixel defining layer in the first
direction.
Exemplary embodiments of the present inventive concept can be
applied to organic light emitting display devices and various
electronic devices including the same. For example, exemplary
embodiments can be applied to a mobile phone, a smartphone, a
smartwatch, a tablet PC, a car navigation system, a television, a
computer monitor, a notebook, etc.
While the present inventive concept has been particularly shown and
described with reference to the exemplary embodiments thereof, it
will be understood by those of ordinary skill in the art that
various changes in form and detail may be made therein without
departing from the spirit and scope of the present inventive
concept as defined by the following claims.
* * * * *